I know the horizontal steelbook have a very nice debossing, but Im not a fan of horizontal steelbooks. Further some other great artworks for a steelbook exist.
Front with debossed title and glossy finish (without the three heads):
https://www.movieposter.com/posters/archive/main/19/MPW-9783
Inlayprint:
http://artwallpapers.biz/photos/wp-content/uploads/2012/02/08/Casino-1995-Wallpaper-3.jpg
Alternative Inlayprint:
http://us.cdn281.fansshare.com/photos/casino/casino-hd-wallpapers-movies-80381957.jpg
Backartwork:
http://www.economyinsight.co.kr/news/photo/201106/766_1664_187.jpg
Front with debossed title and glossy finish (without the three heads):
https://www.movieposter.com/posters/archive/main/19/MPW-9783
Inlayprint:
http://artwallpapers.biz/photos/wp-content/uploads/2012/02/08/Casino-1995-Wallpaper-3.jpg
Alternative Inlayprint:
http://us.cdn281.fansshare.com/photos/casino/casino-hd-wallpapers-movies-80381957.jpg
Backartwork:
http://www.economyinsight.co.kr/news/photo/201106/766_1664_187.jpg